Campbell said that a lot of the effects shots work will concentrate on the Green Lantern’s power ring. “It’s energized by a battery on the planet of Oa, which taps into the willpower of everyone in the universe. From that ring you can form constructs. So if you got into a fight, you could form a giant fist. Or a fighter plane.”

Ryan Reynolds will play the title role in the action-adventure, which Warner Bros. Pictures will release on June 17, 2011.